Lopar

Lopar is a shirtless bandanna-wearing thug who confronts the player throughout Level 5, Missile Mayhem. He jumps from behind background objects then follow a pattern of throwing a shuriken, cartwheeling around the screen then doing a jump-kick. He can be especially annoying when there's more than one on the screen at a time.

Lopar's name comes from an alternate translation of the name "Roper" that appeared in the manuals for certain versions of the original Double Dragon - a result of the ambiguity that comes from transliterating foreign names or words rendered in Japanese. Despite this, Lopar appears to be more closely modeled after the Double Dragon II arcade incarnation of Williams, who also had a cartwheel move and threw knives.